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Electroluminescence Display Device

An electroluminescence display and power line technology, applied to circuits, electrical components, static indicators, etc., can solve problems such as image quality reduction, complex pixel structure, and threshold voltage changes of light-emitting devices, so as to enhance MPRT characteristics and simplify pixels. The effect of minimizing changes in structure and light emission current

Pending Publication Date: 2021-12-24
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Threshold voltage of driving elements in each pixel may vary based on process variation and / or lapse of driving time
Also, the threshold voltage of the light emitting device in each pixel may vary
When a deviation in driving characteristics occurs between pixels, although the same data voltage is applied to each pixel, the light emission current that contributes to light emission in each pixel may inevitably vary
Variations in light emission current lead to uneven brightness, which degrades image quality
[0005] In electroluminescence display devices, various researches are underway for compensating for deviations in drive characteristics between pixels, but there are limitations in ensuring uniformity of luminance due to complex pixel structures and an insufficient degree of compensation

Method used

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  • Electroluminescence Display Device
  • Electroluminescence Display Device
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Examples

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Embodiment Construction

[0022] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the specification, when adding reference numerals to elements in each drawing, care should be taken to use the same reference numerals that have been used to denote the same elements in other drawings for elements as much as possible. In the following description, when a detailed description of a related known function or construction is determined to unnecessarily obscure the gist of the present disclosure, the detailed description will be omitted.

[0023] figure 1 is a block diagram showing an electroluminescent display device according to an embodiment of the present disclosure. figure 2 is shown in figure 1 A diagram of a pixel array set in a display panel.

[0024] refer to figure 1 with figure 2 , The electroluminescent display device according to an embodiment of the present disclosure may include a display panel 10 , a ...

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Abstract

An electroluminescence display apparatus includes a pixel array, including a plurality of pixels, a gate line connected to pixels adjacent thereto in a first direction in common, a data line connected to pixels adjacent thereto in a second direction intersecting with the first direction in common, and a first power line, a second power line, and an initialization voltage supply line connected to all of the plurality of pixels in common, and a panel driving circuit connected to the pixel array.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2020-0075693 filed on June 22, 2020, which is incorporated herein by reference as if fully set forth herein. technical field [0002] The present disclosure relates to an electroluminescence display device. Background technique [0003] Based on the material of the light emitting layer, electroluminescent display devices are classified into inorganic light emitting display devices and organic electroluminescent display devices. Each of a plurality of pixels of the electroluminescent display device includes a self-luminous light emitting device, and adjusts brightness by controlling the amount of light emitted from the light emitting device using a data voltage based on a gray scale of image data. The pixel circuitry of each pixel may include a driving element. [0004] The threshold voltage of the driving element in each pixel may vary based on process variation and / or lapse of driving time. Als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3258G09G3/32H01L27/32
CPCG09G3/3258G09G3/32H10K59/1216H10K59/1213G09G3/3233G09G2300/0852G09G2310/08G09G2320/0233G09G2320/041G09G2330/02G09G2300/0426G09G2310/061G09G2300/0876G09G3/325G09G2300/0439
Inventor 金範陳郭奉春
Owner LG DISPLAY CO LTD